Primer composition



Patented May 25, 1926.

PATENT OFFICE.

UNITED STATES ms RATHSBU'RG, or FURTH, GERMANY.

PRIMER controsI'rIoN.

No Drawing. Original application filed December 20, 1923, Serial No. 681,876.

Divided and this application filed March 18, 1925, Serial No. 16,562, and in Belgium October 23, 1923.

The present application is a division of application Serial No. 681,876, filed December 20, 1923.

According to German Patent N r. 362433 (see British Patent Nr. 201009 tetracenes are used for the preparation of primer compositions for percussion caps, Flobert rifle caps, and similar ammunition.

T etracenes are completely or partly substituted combinations with an open chain of 4 atoms of nitrogen, having the general forproduct of reaction of aminoguanidine nitrate with sodium nitrite, having the empirical formula C H ON its constitution can be illustrated by'the following formula:

This tetracene is more insensitive to shock u than any other, having more or less the sensibility of fulminate of mercury against shock and friction, and on the other hand, it is very stable in storage. A

The advantages of this improvement over 40 prior-art primer compositions, which contain solely fulminate of mercury for means of ignition, will be obvious.

I claim:

1. A primer guanylnitrosaminoguanyltetracene.

2. A primer composition comprising guanylnitrosaminoguanyltetracene admixed with a nitrate.

In testimony whereof I have signed my 50 name to this specification. H

-HANS RATHSBURG.

REISSUED composition comprising 45 

